2 PCS Engine Balance Shaft Sub-Assy Set 13601-28021 13602-28020 For 2006-2015 Solara Matrix TC 2AZ-FE 2.4L This engine balance shaft sub-assembly set includes two components designed for use with 2AZ-FE and 2AZ-FXE 2.4L 4-cylinder engines.The part numbers are 13601-28021 and 13602-28020, serving as direct replacements for the.It is compatible with select vehicle models from 2006 to 2015, including Solara, Matrix, tC, and xB.Constructed from materials, this balance shaft set supports smooth engine and helps reduce vibration during performance conditions.The assemblies are provided in functional condition, free from damage or excessive wear, integration into the engine system.Installation is designed to be straightforward due to precise engineering and exact fitment specifications.The set aligns with engine models 2AZ-FE and 2AZ-FXE, supporting engine balance and efficiency.A fitment reference guide is available to assist in confirming compatibility with specific vehicles.This makes it suitable for both professional mechanics and DIY users seeking to maintain or restore engine performance.